Question on SCSI controllers and camcontrol

Dan Nelson dnelson at
Mon Mar 7 09:32:42 PST 2005

In the last episode (Mar 07), Anthony Atkielski said:
> Why does camcontrol say that I have two SCSI controllers, when in fact I
> have only one (on a PCI card I added to the machine).  My SCSI devices
> show on controller 1, whereas there's nothing on controller 0.  I don't
> have an on-board SCSI controller on the motherboard, so the only SCSI on
> the machine should be the one PCI card.  Why does FreeBSD say that there
> are two?

Run "camcontrol devlist -v".  That will print out which controller each
scbus is attached to.  Maybe you have a dual-channel SCSI card, or have
added "device atapicam" to your kernel config file?

	Dan Nelson
	dnelson at

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